STV telescopic winch driven masts

ANTENNA MASTS

STV telescopic winch driven masts

Telescopic winch operated masts series STV are result of many years of experience in development and production of antennas and antenna masts and on a basis of knowing and considering the needs and demands of the end users in the era of modern wireless telecommunications.

The family of telescopic masts STV consists carefully selected modern materials and technologies and considerate design, functionality and simplicity of use. With all that features the family of the masts STV are suitable for use on the field as well as on the vehicles also in hardest environmental conditions.

The mast is basically composed of telescopic sections made of composite material ("fiberglass") by use the process of "pultrusion". By use of that technology all the fibres are placed longitudinally along the section enable excellent stability with high degree of elasticity. Certain fiberglass layer is also wounded radial during the pultrusion process enables high degree of radial hardness. The masts STV meet environmental requirements in accordance with MIL-STD-810.

The sections have four special longitudinal guiders placed equally outside and made during the process of pultrusion enable excellent guidance when raising and lowering of the masts as well as additionally longitudinal stability. The guiders ensure that the mast is axially joined together prevent the various sections from turning which allows us to easily turn the whole mast in the case of using directional antennas. On the end of the sections are special slide-joints made of durable polyacetal with low weight and excellent mechanical characteristics.

Erection of the mast is enabled with removable hand operated winch with cogwheel transmission and with system of strong polyester-aramide reinforced belts guided between the sections. During the erection we put the belt into the winch wheel and wind it with crank arm, which lifts the sections up. For lowering the mast we simply turn the crank arm in the opposite direction without any need of hand switching which is done by built-in automatic switch mechanism. The winch has built-in automatic safety brake to protect the operator in the case of heavier loads.

The telescopic mast STV has all accessories need for field erection: anchors, guying ropes (made of DYNEEMA material), hammer, etc., together with special cross-bar with eye-anchor intended to fix the mast in specific direction, the base plate with safety chain attachments and extension aluminum tube with grounding screw for antenna attachment. All the accessories are stored in separate linen bags. The mast alone has also linen cap for top sections protection.

The telescopic masts series STV are applicable also for mobile use mounted on vehicles. For this purpose a special mounting kit is available, composed of base plate element and side bracket.